array.prototype.toreversed (original) (raw)

1.1.2 • Public • Published 2 years ago

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array.prototype.toreversed

An ESnext spec-compliant Array.prototype.toReversed shim/polyfill/replacement that works as far down as ES3.

This package implements the es-shim API interface. It works in an ES3-supported environment and complies with the proposed spec.

Because Array.prototype.toReversed depends on a receiver (the this value), the main export takes the array to operate on as the first argument.

Getting started

npm install --save array.prototype.toreversed

Usage/Examples

var toReversed = require('array.prototype.toreversed'); var assert = require('assert');

var arr = [0, 1, 2, 3, 4, 5];

var results = toReversed(arr);

assert.deepEqual(results, [5, 4, 3, 2, 1, 0]); assert.deepEqual(arr, [0, 1, 2, 3, 4, 5]);

var toReversed = require('array.prototype.toreversed'); var assert = require('assert'); /* when Array#toReversed is not present */ delete Array.prototype.toReversed; var shimmed = toReversed.shim();

assert.equal(shimmed, toReversed.getPolyfill()); assert.deepEqual(arr.toReversed(), toReversed(arr));

var toReversed = require('array.prototype.toreversed'); var assert = require('assert'); /* when Array#toReversed is present */ var shimmed = toReversed.shim();

assert.equal(shimmed, Array.prototype.toReversed); assert.deepEqual(arr.toReversed(), toReversed(arr));

Tests

Simply clone the repo, npm install, and run npm test